private async Task <DocumentAnalysisData?> TryGetCachedDocumentAnalysisDataAsync(
TextDocument document, StateSet stateSet, AnalysisKind kind, CancellationToken cancellationToken)
{
try
{
var version = await GetDiagnosticVersionAsync(document.Project, cancellationToken).ConfigureAwait(false);
var state = stateSet.GetOrCreateActiveFileState(document.Id);
var existingData = state.GetAnalysisData(kind);
if (existingData.Version == version)
{
return(existingData);
}
// Perf optimization: Check whether analyzer is suppressed and avoid getting diagnostics if suppressed.
if (DiagnosticAnalyzerInfoCache.IsAnalyzerSuppressed(stateSet.Analyzer, document.Project))
{
return(new DocumentAnalysisData(version, existingData.Items, ImmutableArray <DiagnosticData> .Empty));
}
return(null);
}
catch (Exception e) when(FatalError.ReportUnlessCanceled(e))
{
throw ExceptionUtilities.Unreachable;
}
}
private async Task AnalyzeProjectAsync(Project project, bool forceAnalyzerRun, CancellationToken cancellationToken)
{
try
{
var stateSets = GetStateSetsForFullSolutionAnalysis(_stateManager.GetOrUpdateStateSets(project), project).ToList();
var options = project.Solution.Options;
// PERF: get analyzers that are not suppressed and marked as open file only
// this is perf optimization. we cache these result since we know the result. (no diagnostics)
var activeAnalyzers = stateSets
.Select(s => s.Analyzer)
.Where(a => !DiagnosticAnalyzerInfoCache.IsAnalyzerSuppressed(a, project) && !a.IsOpenFileOnly(options));
// get driver only with active analyzers.
var compilationWithAnalyzers = await AnalyzerHelper.CreateCompilationWithAnalyzersAsync(project, activeAnalyzers, includeSuppressedDiagnostics : true, cancellationToken).ConfigureAwait(false);
var result = await GetProjectAnalysisDataAsync(compilationWithAnalyzers, project, stateSets, forceAnalyzerRun, cancellationToken).ConfigureAwait(false);
if (result.OldResult == null)
{
RaiseProjectDiagnosticsIfNeeded(project, stateSets, result.Result);
return;
}
// we might not have compilationWithAnalyzers even if project supports compilation if we are called with no analyzers.
var compilation = compilationWithAnalyzers?.Compilation ??
(project.SupportsCompilation ? await project.GetCompilationAsync(cancellationToken).ConfigureAwait(false) : null);
// no cancellation after this point.
// any analyzer that doesn't have result will be treated as returned empty set
// which means we will remove those from error list
foreach (var stateSet in stateSets)
{
var state = stateSet.GetOrCreateProjectState(project.Id);
await state.SaveAsync(PersistentStorageService, project, result.GetResult(stateSet.Analyzer)).ConfigureAwait(false);
stateSet.ComputeCompilationEndAnalyzer(project, compilation);
}
RaiseProjectDiagnosticsIfNeeded(project, stateSets, result.OldResult, result.Result);
}
catch (Exception e) when(FatalError.ReportUnlessCanceled(e))
{
throw ExceptionUtilities.Unreachable;
}
}
private async Task <DocumentAnalysisData> GetDocumentAnalysisDataAsync(
CompilationWithAnalyzers?compilation, Document document, StateSet stateSet, AnalysisKind kind, CancellationToken cancellationToken)
{
// get log title and functionId
GetLogFunctionIdAndTitle(kind, out var functionId, out var title);
using (Logger.LogBlock(functionId, GetDocumentLogMessage, title, document, stateSet.Analyzer, cancellationToken))
{
try
{
var version = await GetDiagnosticVersionAsync(document.Project, cancellationToken).ConfigureAwait(false);
var state = stateSet.GetOrCreateActiveFileState(document.Id);
var existingData = state.GetAnalysisData(kind);
if (existingData.Version == version)
{
return(existingData);
}
// perf optimization. check whether analyzer is suppressed and avoid getting diagnostics if suppressed.
if (DiagnosticAnalyzerInfoCache.IsAnalyzerSuppressed(stateSet.Analyzer, document.Project))
{
return(new DocumentAnalysisData(version, existingData.Items, ImmutableArray <DiagnosticData> .Empty));
}
var diagnostics = await AnalyzerHelper.ComputeDiagnosticsAsync(stateSet.Analyzer, document, kind, DiagnosticAnalyzerInfoCache, compilation, span : null, cancellationToken).ConfigureAwait(false);
// this is no-op in product. only run in test environment
Logger.Log(functionId, (t, d, a, ds) => $"{GetDocumentLogMessage(t, d, a)}, {string.Join(Environment.NewLine, ds)}",
title, document, stateSet.Analyzer, diagnostics);
// we only care about local diagnostics
return(new DocumentAnalysisData(version, existingData.Items, diagnostics.ToImmutableArrayOrEmpty()));
}
catch (Exception e) when(FatalError.ReportUnlessCanceled(e))
{
throw ExceptionUtilities.Unreachable;
}
}
}